Social Media Cover Layout

You may use Google+ Cover Photos, 1 large image or Tiles Options.

Google+ Cover Photo Dimensions

Google Plus Cover Photo Width: 940 pixels wide
Google Plus Cover Photo Height: 180 pixels tall
Google Plus icon size: 252px square ( on the banner )

Tiles images

Business Page Banner Cover

Cover image

Facebook Timeline cover dimensions

Facebook Timeline cover dimensions: 851px x 315px
If you upload a larger photo, you can still drag and crop them to resize the banner.
Facebook icon size: 180px square ( on the banner )

Facebook Timeline Cover